Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
  • F16H55/02—Toothed members; Worms
  • F16H55/17—Toothed wheels
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D13/00—Friction clutches
  • F16D13/58—Details
  • F16D13/60—Clutching elements
  • F16D13/64—Clutch-plates; Clutch-lamellae
  • F16D13/68—Attachments of plates or lamellae to their supports
  • F16D13/683—Attachments of plates or lamellae to their supports for clutches with multiple lamellae
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D2250/00—Manufacturing; Assembly
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
  • F16H55/02—Toothed members; Worms
  • F16H55/17—Toothed wheels
  • F16H2055/176—Ring gears with inner teeth
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H57/00—General details of gearing
  • F16H57/08—General details of gearing of gearings with members having orbital motion
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
  • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
  • F16H63/30—Constructional features of the final output mechanisms
  • F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
  • F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49462—Gear making
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/19—Gearing
  • Y10T74/19851—Gear and rotary bodies
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/19—Gearing
  • Y10T74/1987—Rotary bodies
  • Y10T74/19893—Sectional
  • Y10T74/19921—Separate rim
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/19—Gearing
  • Y10T74/1987—Rotary bodies
  • Y10T74/19893—Sectional
  • Y10T74/19935—Sheet metal

Definitions

• the invention relates to a component with internal and external teeth according to the preamble of claim 1 and a method for producing the component according to the preamble of claim 15th
• a component with internal and external toothing is disclosed, which is made in composite construction of a base body and an additional part designed as a sheet metal part.
• the component is preferably formed as a ring gear of a planetary gear and the sheet metal part as a plate carrier for the slats of a switching element - the sheet metal part therefore has a corresponding driving profile.
• German Patent 23 10 288 a planetary gear with a ring gear was known, which is designed as a toothed ring, which is in engagement with planetary gears.
• the ring gear is positively connected in the direction of rotation with a drum and fixed via stop members in the axial direction relative to the drum.
• the entrainment in the direction of rotation via radially outwardly arranged teeth on the sprocket, which engage in bulges of the drum.
• the drum with ring gear acts only as a ring gear and is not designed as a plate carrier.
• the sheet metal part is positively connected in tangential and radial directions with the base body. Due to the positive locking in the radial direction, the sheet metal part is prevented from deformation under the influence of centrifugal force by being held in its position by the stiffer basic body. This achieves a higher speed resistance for the component according to the invention.
• the outer toothing of the sheet metal part is designed as a driving profile, in which a corresponding, arranged on the main body driving teeth engages positively.
• the driving teeth on the base body does not have to extend over its entire circumference, but may be distributed in regions over individual sectors on the circumference. Through this positive connection between the base body and the sheet metal part, the torque transmission between the two parts is ensured.
• the driving teeth of the main body teeth which are undercut or undercut in the region of the tooth root.
• notches are formed on both sides of the tooth root.
• the sheet metal part thus nestles with its driving profile of the contour of the driving teeth on the body and thus forms between each adjacent teeth a kind of dovetail connection, which prevents radial movement of the sheet metal part - for example, under centrifugal force at higher speeds.
• the driving profile can be pushed into the undercut areas after pushing the sheet metal part to the base body by forming, in particular stretching of the material in a tangential direction. This results in a form-locking clamping of both parts, which is permanent due to the plastic deformation of the sheet metal part. Due to the frictional engagement of both parts results in an axial fixation of the sheet metal part on the body at the same time.
• the component has two functions: on the one hand, the sheet metal part is designed as a plate carrier, d. H. in the driving profile grab from the outside inner plates of a plate pack for a switching element, eg. B. a clutch or a brake.
• the base body is formed as a ring gear with an internal toothing, which engages planetary gears of a planetary gear.
• a material for the main body may preferably be a gear material, for. B. a case hardenable steel for the production of internal teeth can be used.
• a deep-drawing steel is preferably used for the plate carrier.
• the driving profile is preferably designed as a trapezoidal profile.
• the component or the ring gear on a ring gear which - like the plate carrier - as a sheet metal part, is formed in particular as a disc, which is advantageously positively connected to the base body. This results in a cost-effective production for the ring gear with plate carrier.
• the object of the invention is also achieved by a method having the features of claim 15.
• the production of the base body is preferably done by cutting, while the production of the sheet metal part, in particular the driving profile without cutting, d. H. done by forming.
• a preliminary profile is first produced during the production of the driving profile, and after the joining of the sheet metal part with the base body the end profile, which causes the positive connection in the radial direction between the base body and the sheet metal part.
• the inventive method is economical, in particular, since it takes place without cutting, and thus leads to low production costs of the component according to the invention, in particular a transmission component.
• FIG. 5 shows the ring gear of FIG. 4 in another view
• Fig. 1 shows a formed as a sheet metal part ring gear carrier 1 as a single part.
• the ring gear 1 is formed as a disc 1 a, the peripheral edge is formed into a mounting flange 1 b.
• Fig. 2 shows a base body 2 as a single part, which is first produced as a cast or forging blank.
• the main body 2 has only indicated internal teeth 3, which is produced by machining and case hardened.
• the base body 2 On its outer circumference, the base body 2 has individual distributed over the circumference areas of a driving toothing 4, consisting of individual teeth 4a, on.
• Fig. 3 shows a plate carrier 5, which is formed as a sheet metal part and manufactured by forming.
• the disk carrier 5 has a driving profile 6, which serves the positive connection with inner plates of a disk set, not shown, for a switching element of a transmission.
• the driving profile 6 is preferably trapezoidal and corresponds to the profile of the driving teeth 4 on the base body second
• Fig. 4 shows the assembly of the aforementioned three items 1, 2, 5 to a ring gear 7.
• the ring gear 1 is connected via its flange 1 b by forming positive fit with the base body 2, so that both parts freely rotatable in the direction of rotation and fixed against each other in the axial direction are.
• the disk carrier 5 is pushed in the axial direction over the base body 2, wherein the areas of the driving teeth 4 engage in the driving profile 6 and thus form a positive connection in the direction of rotation.
• Fig. 5 shows the ring gear 7 in a different perspective, d. H. with a view of the outer part of the Hohlradismes 1.
• the ring gear 7 is thus made in composite construction, d. H. it comprises two sheet-metal parts 1, 5 produced by deformation and the base body 2 machined by machining.
• the ring gear 7 is generally also referred to as a component having an internal toothing 3 and an external toothing 6.
• Fig. 6 shows a partial section in the region of the driving teeth 4 of the base body 2 and the driving professional 6 of the disk carrier 5.
• the teeth 4a have in the region of the tooth root 4b behind or undercut areas 8, 9, which formed as round notches on the respective tooth base 4b are.
• In the tooth gap between the two adjacent teeth 4a engages a tooth 6a of the driving profile 6 a.
• the tooth 6a has two straight flanks 6b and a concave (upwardly curved in the drawing) tooth head 6c, which rests hollow relative to the tooth base 4c of the driving toothing 4.
• the concave tooth head profile 6 c forms a pre-profile in the manufacture of the ring gear 7, wherein the plate carrier 5 is pushed with this pre-profile on the driving teeth 4 of the base body 2.
• FIG. 7 shows the same partial section as in FIG. 6, but after a reshaping of the entrainment profile 6, ie after the stretching of the concave tooth tip region 6c, which in its elongated form is denoted by reference numeral 6c '. is drawing.
• a reshaping of the entrainment profile 6 ie after the stretching of the concave tooth tip region 6c, which in its elongated form is denoted by reference numeral 6c '. is drawing.
• the carrier profile 6 on the main body 2 is held at higher rotational speeds even under the influence of centrifugal force and prevents radial deflection, which would lead to "rising" of the disk carrier 5.
• the disk carrier 5 simultaneously becomes in the axial direction relative to the base body 2 and thus fixed on the ring gear 7.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Mechanical Operated Clutches (AREA)
• Gears, Cams (AREA)
• Retarders (AREA)
• General Details Of Gearings (AREA)
• Iron Core Of Rotating Electric Machines (AREA)
• Preliminary Treatment Of Fibers (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (2)

Family

ID=40822914

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (12)

Family Cites Families (19)

• 2008
  • 2008-02-28 DE DE102008000431A patent/DE102008000431A1/de not_active Ceased
• 2009
  • 2009-01-29 US US12/864,326 patent/US8794097B2/en not_active Expired - Fee Related
  • 2009-01-29 WO PCT/EP2009/050971 patent/WO2009106401A2/de not_active Ceased
  • 2009-01-29 EP EP09715612.9A patent/EP2245339B1/de not_active Not-in-force
  • 2009-01-29 JP JP2010548050A patent/JP4918618B2/ja not_active Expired - Fee Related

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